Anti-nuclear power groups have emerged in every country that has had a nuclear power programme. Protest movements against nuclear power first emerged in the US, at the local level, and spread quickly to Europe and the rest of the world. National nuclear campaigns emerged in the late 1970s. Fuelled by the Three Mile Island accident and the Chernobyl disaster, the anti-nuclear power movement mobilised political and economic forces which for some years "made nuclear energy untenable in many countries".